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1957 Chevy Dyno Tests Electronic Exhaust Cutouts- Loud Rules!

DYNO RESULTS
PROJECT X ’57 CHEVY 210
GMPP ZL1 427-CI
QUICK TIME PERFORMANCE
EXHAUST CUTOUTS
Closed Open
RPM HP TQ HP TQ Change
2,500 140 293 145 302 5 9
2,600 148 298 155 313 7 15
2,700 161 311 167 323 6 12
2,800 175 327 178 331 3 4
2,900 189 341 191 345 3 4
3,000 201 351 203 353 2 2
3,100 213 360 213 359 0 -1
3,200 222 364 223 364 1 0
3,300 231 367 233 369 2 2
3,400 244 375 241 370 -3 -5
3,500 252 377 251 375 -1 -2
3,600 260 379 259 377 -1 -2
3,700 269 380 268 379 -1 -1
3,800 279 383 276 380 -3 -3
3,900 287 385 286 385 -1 0
4,000 294 384 294 386 0 2
4,100 302 386 299 382 -3 -4
4,200 305 380 307 382 2 2
4,300 309 377 311 379 2 2
4,400 315 375 318 378 3 3
4,500 321 374 322 375 1 1
4,600 325 370 326 372 1 2
4,700 331 369 333 372 2 3
4,800 336 366 339 370 3 4
4,900 341 365 350 374 9 9
5,000 348 365 360 377 19 12
5,100 359 369 364 375 5 6
5,200 365 368 369 372 4 4
5,300 373 369 373 369 0 0
5,400 374 363 376 365 2 2
5,500 365 348 371 354 6 6
AVE: 279 362 281 365 +2.4 +2.8


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